I have used Mod_GeoIP up to version 1.2.8 and have recently switched over to ModIP2location 1.x in the past 6 months. No I have not yet uses Mod_Maxmind, which is what Mod_GeoIP has morphed into.

While both do what I want them to do, I have found that sometimes they are not always 100% accurate with their locations (sometimes showing different cities that are about 60 miles/100 kilometers apart.